Cookbook | Ingredients | Units of measurement

The mm, is the symbol for millimetre (millimeter in US spelling), which is an [SI unit of measurement for length. It is equal to 1/1000 m. There are 25.4 mm per inch. There are 10 mm per cm.

As many recipes have been crudely converted from one system to another, a similarly crude conversion back may yield the original recipe.

mm inches
1 1/32
1.5 1/16
2.5 1/10
3 1/8
5 3/16
5 2/10
6 1/4
8 5/16
8.5 1/3
10 3/8
13 1/2
16 5/8
17 2/3
19 3/4
22 7/8
25 1
32 1+1/4
34 1+1/3
38 1+1/2
42 1+2/3
44 1+3/4
51 2